# A201952 (b-file synthesized from sequence entry)
1 1
2 1
3 5
4 24
5 139
6 945
7 7377
8 65016
9 638418
10 6910650
11 81747665
12 1049089470
13 14516096009
14 215419836359
15 3412889885571
16 57492203734320
17 1026121982213480
18 19342642266760680
19 383995631680561234
20 8007915240045479980
21 175020604366224762038
22 4000551483475536398178